Trachichthys australis, Sydney, NSW, Photo: Andrew Green
Trachichthys australis, Jervis Bay, NSW, Photo: Andrew Green
Trachichthys australis, NSW, Australia, Photo: Ian Shaw
Rounded body, reddish brown colour, and white and dark markings on opercles and fins. It is occasionally caught by line. The species releases a toxic white substance through pores in the skin as a defensive measure when captured.
Max Size: 15 cm
Sea Temperature Range: 12.3-23.5°C
Depth: 1–30 m
Habitat: Rocky Reef
Habitat Generalisation Index: 2.6
Also referred to as the SGI (Species generalisation index), this describes the habitat niche breadth of the species.
Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most
hard substrates within their range (generalists). Learn more here
IUCN Threat Status: Not Evaluated
Occurrence: Frequent (11% of sites)
Occurrence describes how often the species is found on surveys within its distribution.
It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed
Abundance: Few (2 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney